外贸食品厂污水处理设备
编辑：出口污水处理设备 来自：https://www.zqwscl.com /日期：2023-10-10 13:06 / 人气：
中侨启迪外贸食品厂污水处理设备的工艺流程：
污水---格栅---隔油池----ao生化池----接触氧化池----斜管沉淀池---清水排放
1、格栅
格栅渠设置于调节池内污水源头进水一端，设计考虑节约用地和投资。
格栅渠内设置人工格栅，通过人工格栅拦截去除生活污水中较大的悬浮物固体、纸屑，保护水泵及后续管路系统不被堵塞。
2、隔油调节池
在食品厂一体化污水处理设备整个处理系统中设置了污水隔油调节池。通过调节池设置，能充分平衡水质、水量，使污水能比较均匀进入后续处理单元，提高整个系统的抗冲击性能减少处理单元的设计规模。有利于降低运行成本和水质波动带来的影响。在调节池内设置空气搅拌装置,防止发生沉淀现象,同时可以起到水质均衡的作用。设置液位自动控制装置，水泵将根据液位自动开启。
外贸食品厂一体化污水处理设备
3、缺氧池由于污水中的有机成分较高，bod5/codcr=0.6可生化性好，因此设计采用生物膜法。因为食品厂污水中有机氮含量高，在进行生物降解时会以氨氮的形式出现，所以排入水中的氨氮的指标会升高，而氨氮也是一个污染控制指标，因此在接触氧化池前加缺氧池，缺氧池可利用回流的混合液中带入的硝酸盐和进水中的有机物碳源进行反硝化，使进水中no2-、no3-还原成n2达到脱氮作用，在去除有机物的同时降解氨氮值。
4、接触氧化池池
污水经缺氧池处理后，自流进入接触氧化池，从而进入接触氧化阶段，即进入好氧处理。
A、接触氧化池是一种生物膜法为主，兼有活性泥的生物处理装置，通过提供氧源，污水中的有机物被微生物所吸附、降解，使水质得到净化。
B、在设计过程中考虑接触氧化时间较长为宜，内部设高比表面积弹性填料，填充率为70%，比表面积近600m2/m3，在设计面积负荷时也应充分考虑周围环境，能确保较好的处理效率。因此设计负荷应选择比较低的值：0.83kg/m3·日。填料使用寿命在8年。池内氧气由回转式鼓风机提供。汽水比也同时考虑较高的值：15:1，曝气形式：微气孔曝气，曝气头考虑采用目前国际水处理较先进的胶膜曝气头。该装置在运行过程中永远不会出现堵塞现象，具有曝气气孔小，氧的利用率高等优点，与传统曝气形式相比，具有无可比拟的优点。
外贸食品厂一体化污水处理设备
C、接触氧化是一种以生物膜法为主兼有活性污泥法的生物处理工艺。经过充分充氧的污水，浸没全部填料并以一定的速度流经填料，生满生物膜的填料表面经过与充氧的污水充分接触，使水中有机物得到吸附和降解，从而使污水得到进化。
D、由于大量微生物被固定在填料层表面，形成高浓度的污泥床，俗称生物膜，它具有较强的耐负荷冲击。此种结构由于没有或极少量地产生悬浮性的活性污泥，因而不会产生污泥膨胀，这也是此法的一大特点。
E、此阶段产关键在于填料层的生物培养与落床，只要运行初期将此项工作做好，运行期间基本不用过问其它问题。
5、沉淀池——污水经过接触氧化后，夹带氧化过程中产生的少量的活性污泥及新陈代谢的生物膜，以及不能进行生物降解的少量固形物，进入二沉池进行固液分离。使水得到澄清排出。沉淀池采用斜管式，总停留时间4.0小时，沉淀的污泥全部回流至污泥池作进一步消化减少剩余污泥。出水槽设计成可调液位的齿形集水槽，增加沉淀效果。
中侨启迪外贸食品厂污水处理设备在食品工业中起着重要的环保作用，有助于减少对自然环境的额无人，同时实现资源的有效利用。
如果您想采购外贸污水处理设备，可以联系山东中侨启迪环保装备有限公司。
Sewage produced by food processing is a special kind of wastewater, which is characterized by containing a lot of organic substances, oil, protein, etc., so it needs to undergo special treatment to meet the requirements of discharge standards or reuse. Integrated sewage treatment equipment is one of the key equipment used to treat this type of wastewater. The following overseas Chinese enlightenment small series and you will introduce the foreign trade food plant sewage treatment equipment.
Process flow of sewage treatment equipment of Zhongqiaoqi Foreign Trade Food Factory:
Sewage- -grille- - - - -oil trap- - - -ao biochemical tank- - - -contact oxidation tank- - - -inclined tube sedimentation tank- - -clean water discharge
1. Grille
The grille channel is set at the end of the sewage source in the regulating tank, and is designed to save land and investment.
The artificial grille is set in the grille canal, which removes the large suspended solids and paper scraps in the domestic sewage through the artificial grille, and protects the water pump and the subsequent pipeline system from being blocked.
2. Oil separation regulating tank
The sewage oil separation regulating tank is set up in the whole treatment system of the integrated sewage treatment equipment in the food plant. By adjusting the pool setting, the water quality and water quantity can be fully balanced, so that the sewage can enter the subsequent treatment unit more evenly, and the impact resistance of the whole system can be improved to reduce the design scale of the treatment unit. It is beneficial to reduce the impact of operating costs and water quality fluctuations. The air mixing device is set in the regulating tank to prevent precipitation phenomenon and can play a role in water quality balance. Set up the liquid level automatic control device, and the water pump will be automatically opened according to the liquid level.
Foreign trade food plant integrated sewage treatment equipment
3. Hypoxia pool
Due to the high organic composition in sewage and the bond 5 / codcr = 0.6 bioavailability, the biofilm method was used. Because of the high organic nitrogen content in food factory sewage, biodegradable in the form of ammonia nitrogen, so into the water of ammonia nitrogen index will rise, and ammonia nitrogen is a pollution control index, so before the oxidation pool and hypoxia pool, hypoxia pool can be used into the reflux mixture of nitrate and organic carbon source in the water for denitrification, make the water no2-, no3-reduction into n2 to nitrogen removal, in the removal of organic matter degradation of ammonia nitrogen value.
4. Contact with the oxidation pool pool
After the sewage is treated by the hypoxia tank, the spontaneous flow enters the contact oxidation tank, thus entering the contact oxidation stage, that is, the aerobic treatment.
A. Contact oxidation tank is A kind of biofilm method, and a biological treatment device with active mud. By providing oxygen source, the organic matter in sewage is adsorbed and degraded by microorganisms, so that the water quality is purified.
B. In the design process, it is advisable to consider the long contact oxidation time. The internal high specific surface area is elastic packing, the filling rate is 70%, and the specific surface area is nearly 600m2 / m3. In the design area load, the surrounding environment should be fully considered to ensure better treatment efficiency. Therefore, the design load should choose a relatively low value: 0.83 kg/m3 days. The packing life is 8 years. The oxygen in the tank is provided by a rotary blower. The vapor-water ratio is also considered at a higher value: 15:1, aeration form: microstoma aeration, aeration head is considered to use the current international water treatment more advanced film aeration head. The device will never be blocked in the process of operation, and it has the advantages of small aeration pores and high oxygen utilization rate. Compared with the traditional aeration form, it has incomparable advantages.
Foreign trade food plant integrated sewage treatment equipment
C. Contact oxidation is a biological treatment process based on biofilm method and activated sludge process. After fully oxygenated sewage, soaking all the packing and flowing through the packing at a certain rate, the surface of the packing filled with biofilm is fully contacted with the oxyated sewage, so that the organic matter in the water is adsorbed and degraded, so that the sewage evolves.
D, because a large number of microorganisms are fixed on the surface of the packing layer, forming a high concentration of sludge bed, commonly known as biofilm, it has a strong resistance to load impact. This structure does not produce or a very small amount of suspended activated sludge, so it will not produce sludge expansion, which is also a major feature of this method.
E. The key to production at this stage lies in the biological cultivation and bed falling of the packing layer. As long as this work is done well in the initial stage of operation, there is basically no need to ask other questions during the operation.
5, sedimentation tank —— sewage after contact oxidation, with a small amount of activated sludge and metabolic biofilm produced in the oxidation process, as well as a small amount of solids that cannot be biodegraded, into the secondary sedimentation tank for solid-liquid separation. Make the water clear and discharged. The sedimentation tank adopts inclined pipe type, with a total residence time of 4.0 hours. All the precipitated sludge is returned to the sludge tank for further digestion and reduce the residual sludge. The outlet tank is designed as a tooth-shaped collecting tank with adjustable liquid level to increase the precipitation effect.
The sewage treatment equipment of foreign trade food factory plays an important role in environmental protection in the food industry, helping to reduce the amount of the natural environment and realize the effective utilization of resources.
If you want to purchase foreign trade sewage treatment equipment, you can contact Shandong Huaqiao enlightenment environmental Protection Equipment Co., LTD.
内容搜索 Related Stories
推荐内容 Recommended
- 西安PP一体化污水处理设备定制11-14
- 外贸食品厂污水处理设备10-10
- 外贸出口集装箱一体化污水处理设备09-26
- 出口新型一体化污水处理设备09-19
- 外贸农村一体化污水处理设备09-05
- 高端一体化污水处理设备定制08-08
- 出口城市污水处理设备08-01
- 出口MBBR工艺污水处理设备07-18
- 外贸一体化泵站污水处理设备06-13
- 外贸QDPP一体化污水处理设备06-03
- 外贸MBBR一体化污水处理设备05-22
- 出口养殖污水处理设备05-13
- 出口高速公路污水处理设备04-23
- 出口葡萄酒污水处理设备03-06
- 出口食品厂污水处理设备02-13